82021488 has 20 divisors (see below), whose sum is σ = 211888968. Its totient is φ = 27340480.

The previous prime is 82021487. The next prime is 82021493. The reversal of 82021488 is 88412028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82021487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854343 + ... + 854438.

Almost surely, 2^82021488 is an apocalyptic number.

It is an amenable number.

82021488 is an abundant number, since it is smaller than the sum of its proper divisors (129867480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82021488 is a wasteful number, since it uses less digits than its factorization.

82021488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708792 (or 1708786 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 82021488 is about 9056.5715367351. The cubic root of 82021488 is about 434.4860941317.

The spelling of 82021488 in words is "eighty-two million, twenty-one thousand, four hundred eighty-eight".